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Try to fetch window's pid, name and class

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This commit is contained in:
Takashi Kokubun 2016-11-28 21:26:47 +09:00
parent 7e66ebde39
commit 246e97d495
1 changed files with 89 additions and 8 deletions
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97
src/main.c
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@ -1,7 +1,9 @@
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <X11/Xatom.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/keysym.h>
int
@ -32,18 +34,26 @@ create_key_event(Display *display, Window window, KeySym keysym, unsigned int mo
};
}
Window
get_focused_window(Display *display)
{
Window window;
int focus_state;
XGetInputFocus(display, &window, &focus_state);
return window;
}
void
input_key(Display *display, KeySym keysym, unsigned int modifiers)
{
Window focus_win;
int focus_state;
XGetInputFocus(display, &focus_win, &focus_state);
Window window = get_focused_window(display);
XKeyEvent event = create_key_event(display, focus_win, keysym, modifiers, KeyPress);
XSendEvent(display, focus_win, True, KeyPressMask, (XEvent *)&event);
XKeyEvent event = create_key_event(display, window, keysym, modifiers, KeyPress);
XSendEvent(display, window, True, KeyPressMask, (XEvent *)&event);
event = create_key_event(display, focus_win, keysym, modifiers, KeyRelease);
XSendEvent(display, focus_win, True, KeyReleaseMask, (XEvent *)&event);
event = create_key_event(display, window, keysym, modifiers, KeyRelease);
XSendEvent(display, window, True, KeyReleaseMask, (XEvent *)&event);
}
void
@ -53,10 +63,76 @@ grab_keys(Display *display)
XGrabKey(display, XKeysymToKeycode(display, XK_b), ControlMask, root, True, GrabModeAsync, GrabModeAsync);
}
void
fetch_window_name(Display *display, Window window)
{
Atom net_wm_name = XInternAtom(display, "_NET_WM_NAME", True);
XTextProperty prop;
XGetTextProperty(display, window, &prop, net_wm_name);
if (prop.nitems == 0) {
XGetWMName(display, window, &prop);
}
if (prop.nitems > 0 && prop.value) {
if (prop.encoding == XA_STRING) {
printf("XA_STRING: %s\n", (char *)prop.value);
} else {
char **l = NULL;
int count;
XmbTextPropertyToTextList(display, &prop, &l, &count);
if (count > 0 && *l)
printf("Not XA_STRING: %s\n", *l);
XFreeStringList(l);
}
}
}
void
fetch_window_class(Display *display, Window window)
{
Atom net_wm_name = XInternAtom(display, "WM_CLASS", True);
XTextProperty prop;
XGetTextProperty(display, window, &prop, net_wm_name);
if (prop.nitems > 0 && prop.value) {
if (prop.encoding == XA_STRING) {
printf("class XA_STRING: %s\n", (char *)prop.value);
} else {
char **l = NULL;
int count;
XmbTextPropertyToTextList(display, &prop, &l, &count);
if (count > 0 && *l)
printf("class Not XA_STRING: %s\n", *l);
XFreeStringList(l);
}
}
}
void
fetch_window_pid(Display *display, Window window)
{
int format;
unsigned long nitems, after;
unsigned char *data = NULL;
Atom ret_type;
Atom targ_atom = XInternAtom(display, "_NET_WM_PID", True);
if (XGetWindowProperty(display, window, targ_atom, 0, 65536, False,
XA_CARDINAL, &ret_type, &format, &nitems, &after, &data) == Success && nitems > 0) {
unsigned char *r = data;
if (r) {
int pid = (r[1] * 256) + r[0];
printf("pid: %d\n", pid);
XFree(r);
}
}
}
void
event_loop(Display *display)
{
XEvent event;
XWindowAttributes attrs;
while (1) {
XNextEvent(display, &event);
switch (event.type) {
@ -66,6 +142,11 @@ event_loop(Display *display)
case KeyRelease:
// ignore. Is it necessary to handle this?
break;
case PropertyNotify:
fetch_window_name(display, get_focused_window(display));
fetch_window_class(display, get_focused_window(display));
fetch_window_pid(display, get_focused_window(display));
break;
case MappingNotify:
// FIXME: refresh mapping and grag keys again
fprintf(stderr, "mapping notify detected!\n");
@ -87,7 +168,7 @@ remap_keys()
}
XSetErrorHandler(error_handler);
XSelectInput(display, XDefaultRootWindow(display), KeyPressMask);
XSelectInput(display, XDefaultRootWindow(display), KeyPressMask | PropertyChangeMask);
grab_keys(display);
event_loop(display);